Just a quick remix by scaling it down in Tinkercad to fit the 60mm diameter of the Atik Camera and extending the tongue back to it's orginal length by duplicating, cutting and melting it back together.
Had the stl run through slic3r to iron out the tinkercad faults when regrouping.

printed it solid (its not that thick to justify any infill) in PTEG to keep it mor flexible) and with a thick brim.